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Single Flexible Janus Nanobelts to Realize Tunable and Enhanced Simultaneous Photoluminescent, Electrical, and
Duanduan Yin1, Qianli Ma1, Xiangting Dong1
1Changchun University of Science and Technology, Key Laboratory of Applied Chemistry and Nanotechnology at Universities of Jilin, 7989 Weixing Road, Changchun 130022 (P. R. China), Fax: (+86)-431-8538-3815.
Abstract:
Y2 O3 :Eu3+ nanoparticles (NPs), polyaniline (PANI), and Fe3 O4 NPs are incorporated into polymethyl methacrylate (PMMA) and electrospun into [Y2 O3 :Eu3+ /PMMA]//[PANI/Fe3 O4 /PMMA] Janus nanobelts with Y2 O3 :Eu3+ /PMMA as one half side and PANI/Fe3 O4 /PMMA as the other. The morphology and properties of the final products are investigated in detail by X-ray diffraction (XRD), scanning electron microscopy (SEM), optical microscopy (OM), energy-dispersive spectrometry (EDS), Hall effect measurements, fluorescence spectroscopy, vibrating sample magnetometry (VSM), and UV/Vis spectroscopy. The results reveal that the [Y2 O3 :Eu3+ /PMMA]//[PANI/Fe3 O4 /PMMA] trifunctional Janus nanobelts possess excellent electrical conductivity, magnetism, and fluorescence owing to their special nanostructure. Fluorescence emission peaks of Eu3+ are observed in the Janus nanobelts. The electrical conductivity reaches the order of 10-4 S cm-1 . The luminescent intensity, electrical conductivity, and saturation magnetization of the Janus nanobelts can be tuned by adjusting the respective amounts of Y2 O3 :Eu3+ NPs, PANI, and Fe3 O4 NPs. The flexible luminescent-electrical-magnetic trifunctional Janus nanobelts have many potential applications. More importantly, this design concept and construct technology is of universal significance for the fabrication of other multifunctional nanostructures.
